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https://issues.apache.org/jira/browse/HBASE-21078?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Duo Zhang updated HBASE-21078:
------------------------------
Fix Version/s: (was: 3.0.0-alpha-1)
> [amv2] CODE-BUG NPE in RTP doing Unassign
> -----------------------------------------
>
> Key: HBASE-21078
> URL: https://issues.apache.org/jira/browse/HBASE-21078
> Project: HBase
> Issue Type: Bug
> Components: amv2
> Affects Versions: 2.0.1
> Reporter: Michael Stack
> Assignee: Michael Stack
> Priority: Major
> Fix For: 2.2.0, 2.1.1, 2.0.2
>
> Attachments: HBASE-21078.branch-2.0.001.patch,
> HBASE-21078.branch-2.0.002.patch, HBASE-21078.branch-2.0.003.patch,
> HBASE-21078.branch-2.0.004.patch, HBASE-21078.branch-2.0.004.patch,
> HBASE-21078.branch-2.0.004.patch
>
>
> Saw this is a run against tip of branch-2.0. The region had just finished
> being split when the move goes to run.
> {code}
> 2018-08-18 16:55:14,908 INFO [PEWorker-2] procedure2.ProcedureExecutor:
> Finished pid=2028, state=SUCCESS, hasLock=false; SplitTableRegionProcedure
> table=IntegrationTestBigLinkedList, parent=c3f199b5af62ae2ff8f8b6426b21d95d,
> daughterA=31ccbf098ae615ce30f28ec84c956b8f,
> daughterB=1890b4c96736f223f31efef11c817c90 in 9.0090sec
> 2018-08-18 16:55:14,908 INFO [PEWorker-16]
> procedure.MasterProcedureScheduler: pid=2038, ppid=2030,
> state=RUNNABLE:MOVE_REGION_UNASSIGN, hasLock=false; MoveRegionProcedure
> hri=c3f199b5af62ae2ff8f8b6426b21d95d,
> source=ve0540.halxg.cloudera.com,16020,1534632630737,
> destination=ve0540.halxg.cloudera.com,16020,1534632630737 checking lock on
> c3f199b5af62ae2ff8f8b6426b21d95d
> 2018-08-18 16:55:14,958 INFO [PEWorker-16] procedure2.ProcedureExecutor:
> Initialized subprocedures=[{pid=2095, ppid=2038,
> state=RUNNABLE:REGION_TRANSITION_DISPATCH, hasLock=false; UnassignProcedure
> table=IntegrationTestBigLinkedList, region=c3f199b5af62ae2ff8f8b6426b21d95d,
> server=ve0540.halxg.cloudera.com,16020,1534632630737}]
> 2018-08-18 16:55:15,008 INFO [PEWorker-3]
> procedure.MasterProcedureScheduler: pid=2095, ppid=2038,
> state=RUNNABLE:REGION_TRANSITION_DISPATCH, hasLock=false; UnassignProcedure
> table=IntegrationTestBigLinkedList, region=c3f199b5af62ae2ff8f8b6426b21d95d,
> server=ve0540.halxg.cloudera.com,16020,1534632630737 checking lock on
> c3f199b5af62ae2ff8f8b6426b21d95d
> 2018-08-18 16:55:15,085 ERROR [PEWorker-3] procedure2.ProcedureExecutor:
> CODE-BUG: Uncaught runtime exception: pid=2095, ppid=2038,
> state=RUNNABLE:REGION_TRANSITION_DISPATCH, hasLock=true; UnassignProcedure
> table=IntegrationTestBigLinkedList, region=c3f199b5af62ae2ff8f8b6426b21d95d,
> server=ve0540.halxg.cloudera.com,16020,1534632630737
> java.lang.NullPointerException
> at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
> at
> org.apache.hadoop.hbase.master.assignment.RegionStates.getOrCreateServer(RegionStates.java:1097)
> at
> org.apache.hadoop.hbase.master.assignment.RegionStates.addRegionToServer(RegionStates.java:1125)
> at
> org.apache.hadoop.hbase.master.assignment.AssignmentManager.markRegionAsClosing(AssignmentManager.java:1477)
> at
> org.apache.hadoop.hbase.master.assignment.UnassignProcedure.updateTransition(UnassignProcedure.java:204)
> at
> org.apache.hadoop.hbase.master.assignment.RegionTransitionProcedure.execute(RegionTransitionProcedure.java:345)
> at
> org.apache.hadoop.hbase.master.assignment.RegionTransitionProcedure.execute(RegionTransitionProcedure.java:97)
> at
> org.apache.hadoop.hbase.procedure2.Procedure.doExecute(Procedure.java:873)
> at
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execProcedure(ProcedureExecutor.java:1556)
> at
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.executeProcedure(ProcedureExecutor.java:1344)
> at
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.access$900(ProcedureExecutor.java:76)
> at
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor$WorkerThread.run(ProcedureExecutor.java:1854)
> {code}
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